“primary standards of national defense”的概念、定义、翻译、参考文献-科学参考

单词	primary standards of national defense
释义	primary standards of national defense Encyclopedia 工学（计量）释 primary standards of national defense国防最高计量标准在国防军工系统中具有最高计量特性，由国家国防科技工业计量主管部门考核合格并授权在国防军工系统中进行量值传递的测量标准。
随便看	Euler-Poincaré mapping Euler Poinsot case Euler-Poinsot case Euler point Euler Poisson Darboux equation Euler-Poisson-Darboux equation Euler-Poisson integral euler pole Euler polygonal arc Euler polygonal arc method Euler polygon division problem Euler polygons Euler polyhedral formula Euler polyhedron Euler polynomial Euler polynomial identity Euler power conjecture Euler product Euler pseudoprime Euler quadratic residue theorem Euler quartic conjecture Euler relation Euler rotation theorem Euler rule Euler's equation

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。